Lines Matching refs:PNG_BACKGROUND_IS_GRAY
805 * PNG_BACKGROUND_IS_GRAY only to decide when to do the
811 png_ptr->mode |= PNG_BACKGROUND_IS_GRAY;
818 png_ptr->mode |= PNG_BACKGROUND_IS_GRAY;
1453 !(png_ptr->mode & PNG_BACKGROUND_IS_GRAY))
1530 (png_ptr->mode & PNG_BACKGROUND_IS_GRAY))
